Cover - USD ($)	12 Months Ended
	Jun. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2024
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Current Fiscal Year End Date	--06-30
Entity File Number	0-4057
Entity Registrant Name	PORTSMOUTH SQUARE, INC
Entity Central Index Key	0000079661
Entity Tax Identification Number	94-1674111
Entity Incorporation, State or Country Code	CA
Entity Address, Address Line One	1516 S. Bundy Drive
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90025
City Area Code	(310)
Local Phone Number	889-2500
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 2,154,000
Entity Common Stock, Shares Outstanding		734,187
Documents Incorporated by Reference [Text Block]	None
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Auditor Opinion [Text Block]	We have audited the accompanying consolidated balance sheets of Portsmouth Square, Inc. and its subsidiaries (the “Company”) as of June 30, 2024 and 2023, and the related consolidated statements of operations, shareholders’ deficit, and cash flows for the years then ended, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of June 30, 2024 and 2023, and the results of its operations and its cash flows for each of the two years in the period ended June 30, 2024, in conformity with accounting principles generally accepted in the United States of America.
Auditor Name	WithumSmith+Brown, PC
Auditor Location	East Brunswick, NJ
Auditor Firm ID	100